Differently, IL-4 inhibition did not affect MOLT-4 resistance to dexamethasone, while IL-13 blockade sensitizes MOLT-4, but not ALL-SIL and RPMI-8402 cell lines, to the action of dexamethasone, thus suggesting that the activation of the pathway is complementary mediated by both cytokines. Here, IL13 is linked to acute lymphoblastic leukemia.